baber/WOPTO huggingface dataset:
Patent CA-2191760-A1 (CA)
Title: Tubeformed rock bolt
Inventor: K REBY BJORN
IPC: E21D20/00
Filed: 1995-06-01
Abstract: Tubeformed rock bolt with closed cross section. The rock bolt comprises a tube (11) provided with a longitudinal depression (12). The tube is at the ends provided with a first sleeve (14) and a second sleeve (13). The sleeves are welded to the tube (11) so that a closed room (23) is created. The second sleeve (13) is provided with a radial groove (20) for giving the rock bolt a predetermined angular position in a tool used for setting the bolt and a first hole (18) for injection of cement. The tube (11) is furthermore provided with a second hole (19) near a first end (21). This hole is a venting hole for the closed room (23).
Patent CA-2192129-A1 (CA)
Inventor: THAYER BRUCE E
IPC: G03G21/00
Filed: 1996-12-05
Abstract: An apparatus in which a six bar linkage cleaner brush retraction/ engagement mechanism enables brush retraction (and engagement with the photoreceptor) while providing good control over the brush interference and the capability of changing all of the timing parameters through clutch actuation times in software and clutch shaft speed. The mechanism allows the brushes to retract and engage the photoreceptor independently of one another with relatively soft contacts to the photoreceptor to minimize impacts to photoreceptor motion quality. A four position clutch is used to provide magnetic pole sensor outputs to the system controller to decide when the clutch, which drives the six bar linkage, is engaged and disengaged. The index wheel of the clutch has four equally spaced magnets that are located relative to the retraction crank shaft so that there is a significant amount of time between detecting a pole and the corresponding desired state. An encoder is used to monitor the mechanical drift of each cleaner state.
Patent CA-2192760-A1 (CA)
Inventor: MATTEAU ROBERT
IPC: A24D1/00
Filed: 1996-12-12
Abstract: A non-smokable tobacco product comprises a rod-shaped element of cigarette tobacco with a filter element at one end and both enclosed by a tubular wrapper. The product is rendered unsmokable by a perforation extending through the wrapper of the tobacco or the filter element so that when air is drawn through the filter substantially all of the air enters through those perforations, there being insufficient air flow through the tip end to propagate normal cigarette combustion of the tobacco at that location or to permit any appreciable amount of smoke reaching the smoker's mouth. The product is rendered smokable by the user covering the perforated region of the wrapper by means of a strip, a sliding band, or a ring which blocks air flow through the perforations and thus converts the product into a self-made cigarette that can be smoked in the manner of a regular cigarette.
Patent CA-2194402-A1 (CA)
Title: Injection-moulding machine for thermoplastics
Inventor: BOCK STEFAN
IPC: B29C45/54
Filed: 1996-05-08
Abstract: The invention concerns an injection-moulding machine for thermoplastics, the machine having at least one plastifier unit (10), at least one injectionmoulding cylinder (11) with its associated discharge piston (18), and at least one mould (12). The injection-moulding cylinder (11) is fitted with a sleeve (16) which is disposed so that it can move back and forth between a position in which the connection to the mould is cut off and a position in which the connection to the mould is established. In the position in which no connection to the mould exists, there is a passage between the sleeve (16) and housing (14) which is connected to the feed channel (46) from the plastifier unit (10) and also to the storage space (27) inside the sleeve (16). The outside diameter of the discharge piston (18) is slightly smaller than the internal diameter of the sleeve (16) so that, between the two, there remains an annular gap through which the plastic can enter from one end (28) of the sleeve (16) into the storage space (27).
Patent CA-2194698-A1 (CA)
Title: Monitor for load bearing device
Inventor: NEWHAM PAUL F
IPC: G08B21/22
Filed: 1995-07-25
Abstract: An electric power driven system for monitoring a device or sensor for detecting the presence of a load, such as a patient, infirm person or infant, on a device or sensor. The system includes a microprocessor and a plurality of circuits connected to the microprocessor. A circuit connected to the microprocessor and to the sensor automatically initiates operation of the microprocessor upon detection by the sensor of the load's presence on the device or sensor. Another circuit connected to the microprocessor provides a signal or alarm upon demand by the microprocessor. A circuit connected to the microprocessor is adapted to be interfaced with a nurse call station for generating signals to the station upon demand by the microprocessor. A circuit connected to the microprocessor programs the system in response to commands manually applied to this circuit.
Patent CA-2194729-A1 (CA)
Inventor: KELLE ANTAL
IPC: A63H11/20
Filed: 1997-01-09
Abstract: A mobile apparatus, especially one for medical exercise and treatment purposes, with a seat for accommodating a person, below which several foot elements, which can be set down on the floor, are movably mounted in each case in a bearing mounting on the seat side of the apparatus, which bearing mounting has at least one first bearing element, which protrudes into the bearing recess and which detachably abuts at least one second bearing element formed at the foot element, so that the foot element, which can be moved essentially vertically and, with that, its floor touch-down surface, in a position, disengaged from the floor, can be swiveled forward in the direction of motion of the toy with engagement of the two bearing elements, the foot element, when the floor touch-down surface touches down on the floor, being movable essentially vertically upwards with disengagement and, at the same time, being guided in the bearing mounting in such a manner that a component of motion in the running direction (A) is imparted by the vertical motion during the touching-down process.
Patent CA-2195003-A1 (CA)
Title: Authentication technique
Inventor: DEROME MICHAEL FERNAND ALEXAND
IPC: G07F7/12
Filed: 1995-07-07
Abstract: A dual-secure authentication technique takes advantage of the inherently secure nature of certain data storage media, such as that based upon the structural variation, from place to place over a strip, of magnetic characteristic, to attach to a valued article a secure identity code. The security is further enhanced by incorporating that code, together with further data, "signing" the code and further data using the secret key of a cryptosystem pair and attaching the signed information to the article. Authentication requires the signed information to be de-crypted using the public key of the cryptosystem pair and ensuring that the code so recovered tallies with that recorded in the secure medium.
Patent CA-2196643-A1 (CA)
Title: Coating compositions curable by radiation and their use for preparing coated substrates
Inventor: MEIXNER JUERGEN
IPC: G03F7/032
Filed: 1997-02-03
Abstract: The present invention relates to coating compositions, which are curable by radiation and contain I) 0 to 95 parts by weight of at least one binder curable by radiation and containing maleate, fumarate and/or acryloyl groups other than those of component II), II) 5 to 100 parts by weight of a mixture of A) 20 to 80 parts by weight of at least one polyester resin prepared from fatty acids, provided that at least 20 wt.% of component A) is a fatty acid having a number average molecular weight of 112 to 400 and B) 20 to 80 parts by weight of compounds containing (meth)acryloyl groups, having a viscosity at 23°C of 10 to 1,000 mPa.s and having a number average molecular weight of 170 to 1,000, wherein the sum of the parts by weight of components I) and II) adds up to 100, based on the weight of components I) and II), and the sum of the parts by weight of components A) and B) adds up to 100, based on the weight of components A) and B).
Patent CA-2197045-A1 (CA)
Title: Antistatically treated polymers
Inventor: HILTI BRUNO
IPC: C08L75/00
Filed: 1997-02-07
Abstract: The invention relates to a composition comprising a thermoplastic, structurally crosslinked elastomeric or thermosetting polymer, which comprises (a) a polar, adsorptive inorganic or organic material in the form of fibres or particles which are in mutual contact, onto which is adsorptively bound (b) a polar antistatic agent comprising a mixture of b1 ) at least one polar organic compound having at least 5 carbon atoms and at least 3 heteroatoms, and b2) the salt of an inorganic protic acid, which is solvated or complexed in the polar organic compound. The invention also relates to a second composition comprising b) a polar inorganic or organic material, b1) a polar organic compound having at least 5 carbon atoms and at least 3 heteroatoms and b2) an inorganic salt, to the use of this second composition for the antistatic treatment of polymers, and to a process for preparing antistatically treated polymers.
Patent CA-2197626-A1 (CA)
Title: An ink cartridge for a printer
Inventor: BETSCHON LUZIUS
IPC: B41J2/175
Filed: 1997-02-14
Abstract: An ink cartridge for a printer comprises a casing containing a porous ink storage body. A bottom wall of the cartridge casing has an opening therethrough for communication with a print head. An area of the inside face of the bottom wall around the opening has a plurality of grooves that open to the opening. The area is covered by a sieve against which the porous body is held in contact.
Patent CA-2197915-A1 (CA)
Title: Cryptographic key recovery system
Inventor: JOHNSON DONALD B
IPC: H04L9/10
Filed: 1997-02-05
Abstract: A cryptographic key recovery system for generating a cryptographic key for use by a pair of communicating parties while simultaneously providing for its recovery using one or more key recover agents. A plurality of m-bit shared key parts (P, Q) are generated which are shared with respective key recovery agents, while an n-bit nonshared key part (R) is generated that is not shared with any key recovery agent. The shared key parts (P, Q) are combined to generate an m-bit value which is concatenated with the nonshared key part (R) to generate an (m + n)-bit value from which an encryption key is generated. The cryptographic system has the effective work factor of an n-bit key to all of the key recovery agents acting in concert, but has the effective work factor of an (m + n)-bit to any other combination of third parties. The quantity n is selected to make authorized key recovery feasible, but not so trivial as to permit routine decryption of intercepted communications, while the quantity m is selected to make decryption by unauthorized third parties infeasible. Means are provided for verifying that the shared key parts have been shared with the key recovery agents before permitting encrypted communications using the thus generated key.
Patent CA-2198846-A1 (CA)
Title: Fibres a base d'alcool de polyvinyle ayant une excellente resistance a l'eau bouillante et procede de production
Inventor: SANO HIROFUMI
IPC: D01F6/14
Filed: 1996-08-14
Abstract: Cette invention concerne un processus de fabrication de fibres à base d'alcool de polyvinyle, lequel processus consiste à filer une solution d'alcool de polyvinyle afin d'obtenir un fil brut filé, puis à étirer ce fil selon un rapport d'étirage global de 15 ou plus. Ce fil brut, qui contient un acétal dérivé d'un dialdéhyde ayant six atomes de carbone ou plus en qualité d'agent de réticulation, est soumis à un étirage à chaleur sèche, puis à la réticulation à l'aide d'un acide et dans des conditions modérées. Ce processus n'entraîne qu'une oxydation thermique très réduite de l'agent de réticulation lors de l'étirage ou lors de la dispersion dudit agent de réticulation pendant l'étirage à chaleur sèche, et permet d'obtenir une pénétration suffisante de l'agent de réticulation dans les fibres à réticuler, non seulement en surface mais aussi à l'intérieur de ces dernières. Ce processus permet ainsi d'obtenir des fibres à base d'alcool de polyvinyle qui possèdent une ténacité élevée et une grande résistance à la chaleur humide.
Patent CA-2199647-A1 (CA)
Title: Synchronization of communication devices connected over an asynchronous link
Inventor: WOOD ROBERT
IPC: H04L12/70
Filed: 1997-03-11
Abstract: In a method of establishing communication between synchronous devices over an asynchronous communications channel, each device samples a signal to be transmitted at a rate determined by a local clock. The rate of transmission of samples over the channel is determined by the local clock in each device. At least one of the devices is periodically adjusted to match the rates of transmission and arrival of samples over the channel, for example, by adjusting the frequency of the local clock or by dropping or duplicating samples. With this arrangement there is no need to exchange explicit timing information.
Patent CA-2200039-A1 (CA)
Title: Method to Resolve Phase Ambiguities in a Phase Measurement
Inventor: BAMLER RICHARD
IPC: G01J9/02
Filed: 1997-03-14
Abstract: In a method to resolve ambiguities in a phase measurement for application in radar interferometry, a frequency estimation method is used, starting from conjugate complex products of pairs of adjacent pixels in an interferogram.  The resolution of these products is subsequently reduced through successive addition or averaging, after which the differential phase of adjacent resolution levels is determined in each resolution level.  The sum of the phase differences yields the estimated value for the phase gradient which is then used in a known method, such as the least-squares method, to reconstruct the absolute phase, thus resolving the phase ambiguities.  The method according to the invention serves to resolve phase ambiguities in radar interferograms without producing the known distortions produced by the existing methods.  The method is also robust at low coherence values as they occur in repeat-pass interferometry where the existing methods fail. The method allows for a simple adaptation to the common local variations in interferogram quality.
Patent CA-2206126-A1 (CA)
Title: Hub, pulley, and method
Inventor: KUTZSCHER MICHAEL H
IPC: B21D22/16
Filed: 1997-05-26
Abstract: A hub that is integral to a disc and with an integral collar that defines a blind bore of the hub.
Patent CA-2207317-A1 (CA)
Title: Mobile access for cordless terminal mobility
Inventor: DOE STEPHEN
IPC: H04W8/06
Filed: 1995-11-29
Abstract: A method and apparatus for providing services to a portable terminal in a radiocommunication system are disclosed. In circumstances where the portable terminal has roamed outside the service area of a home exchange, services for that subscriber can be handled by routing both a signalling link (e.g., carrying control information from depressed keys) and a call-bearing connection back through the home exchange so that the services need not follow the subscriber. This routing can be performed when the call is initiated or after services are requested.
Patent CA-2208083-A1 (CA)
Inventor: RIOPEL MICHAEL C
IPC: A61M25/06
Filed: 1995-12-21
Abstract: Cette invention porte sur un cathéter et le procédé de fabrication correspondant. Le cathéter comprend une partie centrale de forme allongée et dotée d'un revêtement interne unitaire de nature glissante, délimitant au moins un canal, ainsi que des moyens de renforcement. Ceux-ci, disposés au-dessus du diamètre extérieur du revêtement, sont thermofixés sur ce dernier et s'arrêtent à proximité de son extrémité distale. Le cathéter comprend également une tige de forme allongée, délimitant un canal dont les dimensions sont ajustées pour recevoir la partie centrale se déployant longitudinalement dans ledit canal. Cette tige est thermofixée sur la partie centrale. Le cathéter possède aussi un tube de transition de forme allongée, délimitant un canal dont les dimensions sont ajustées pour recevoir la partie centrale se déployant longitudinalement dans le tube de transition. L'extrémité distale de la tige est thermofixée sur l'extrémité proximale du tube de transition. Ce dernier, qui est fait d'un matériau plus souple que celui de la tige, est thermofixé sur la partie centrale. Le cathéter comprend, en outre, un tube d'extrémité de forme allongée, fait d'un matériau plus souple que celui du tube de transition. Le tube d'extrémité délimite un canal dont les dimensions sont ajustées pour recevoir la partie centrale s'y déployant longitudinalement. L'extrémité distale du tube de transition est thermofixée sur l'extrémité proximale du tube d'extrémité lequel est thermofixé sur la partie centrale, à distance de l'extrémité distale des armatures, l'extrémité distale du tube d'extrémité formant un bord arrondi qui recouvre l'extrémité distale du revêtement sur 5 mm environ, de sorte que cette dernière ne se trouve pas à découvert.
Patent CA-2213579-A1 (CA)
Title: Process for producing pentafluoroethane and tetrafluorochloroethane
Inventor: YAMADA YASUFU
IPC: C07C19/12
Filed: 1996-02-22
Abstract: The invention relates to a process for producing HFC-125 and/or HCFC-124 from PCE. The process involves a first reaction step of fluorinating PCE in the presence of catalyst in a liquid phase to form HCFC-123 and/or HCFC-122 and a second reaction step of fluorinating HCFC-123 and/or HCFC-122 in the presence of catalyst in a vapor phase to form HFC-125 and/or HCFC-124. This process gives an improved yield of objective products, the catalyst remains effective for a long period, and the reaction temperature can be controlled without difficulty.
Patent CA-2214993-A1 (CA)
Inventor: ZHENG QUN Y
IPC: C07D407/12
Filed: 1996-03-08
Abstract: Composé antitumoral de formule (5), dans laquelle R = Ac ou H, et R¿1? = R¿2? = un groupe alkyle tel que Me, Et, Pr, i-Pr, n-Bu ou t-Bu, R¿3? = H; R¿1? = R¿2? = R¿3? = H; R¿1? = un groupe alkyle tel que Me, Et, Pr, i-Pr, n-Bu ou t-Bu, R¿2? = R¿3? = H; R¿1? = R¿3? = H, R¿2? = un groupe alkyle tel que Me, Et, Pr, i-Pr, n-Bu ou t-Bu; R¿1? = H, R¿2? = R¿3? = un groupe alkyle tel que Me, Et, Pr, i-Pr, n-Bu ou t-Bu; R¿1? = R¿2? = R¿3? = un groupe alkyle Me, Et, Pr, i-Pr, n-Bu ou t-Bu. Me est une abréviation pour méthyle, Et représente éthyle, Pr représente propyle, i-Pr représente isopropyle, n-Bu représente n-butyle, et t-Bu représente tert-butyle. L'invention concerne également un procédé en une étape de préparation d'un composé de la formule (5), selon lequel un taxane présenant un groupe tiglate fixé à la chaîne latérale est mis en contact avec un réactif oxydant ayant pour résultat la formation d'un époxyde présentant une activité antitumorale.
Patent CA-2215112-A1 (CA)
IPC: A61J9/00
Filed: 1997-09-11
Abstract: A baby bottle includes two or more tubular bodies.  The tubular bodies are coupled in end to end relation to form a cylindrical body having a first end and a second end.   A nipple/liner is retained at the first end the cylindrical body. When used with a flexible liner, tubular bodies may be removed from the baby bottle to permit finger access to the flexible liner for the purpose of expelling air.  When used with a base end closure and without a liner, the baby bottle can be taken apart to facilitate cleaning.
Patent CA-2215215-A1 (CA)
Title: Humidity-resistant bluish luster pigments
Inventor: KALIBA CLAUS
IPC: C09C1/00
Filed: 1997-09-25
Abstract: Humidity-resistant bluish luster pigments Humidity-resistant bluish luster pigments based on titania-coated silicatic platelets heated in a reducing atmosphere are obtainable by reaction of the reduced platelets with a silane of the general formula I                       RaSiXb where:                          I          R   is a C1-C10-alkyl radical with substituted in the .omega.-position by a glycidoxy group, by an amino group, by a hydroxyl group or by a monoalkylamino group or an alkoxy radical whose alkyl chains may each contain up to 10 carbon atoms and may be interrupted by from 1 to 5 ether oxygen atoms or imino groups, the radicals R for a > 1 being identical or different;            X   is C1-C4-alkoxy;   a   is 1 or 2; and b   is 2 or 3, subject to the proviso that a + b = 4.
Patent CA-2220262-A1 (CA)
Title: Cyclone dust collector
Inventor: MINAKAWA SUSUMU
IPC: B04C5/12
Filed: 1997-11-04
Abstract: A cyclone dust collector wherein the interior of a cyclone body is divided into an upper space and a lower space by a partition member provided with a plurality of cylindrical filters, a suction port is so provided as to communicate with the lower space, a common discharge port is so provided as to communicate with the upper space, a collected dust recovery box is fixed to the lower end of the cyclone body, and a discharge blower is connected to the discharge port of the cyclone body. The dust collector is further provided with backwashing stop valves capable of opening and closing upper end portions of the filters and having backwashing nozzles, stop valve driving mechanisms adapted to open and close the stop valves, compressed air hoses connected to the backwashing nozzles of the stop valves, and backwashing electromagnetic valves for controlling the supply and cutoff of backwashing compressed air to the compressed air hoses. Each of the filters is able to be backwashed independently by supplying compressed air to the filters via the compressed air hoses, with the upper end portions of the filters closed by the stop valves.
Patent CA-2221028-A1 (CA)
Inventor: BENJELLOUN NABILA
IPC: C12P21/08
Filed: 1997-03-14
Abstract: A non-human mammal genetically modified without affecting its genome and having any two of the following pathological signs: (a) a blood-brain barrier that is open or permeable to water-soluble blood molecules non-specific for the cerebral parenchyma, (b) an astrocyte disorder revealed particularly by physical network disorganisation, the disappearance of perivascular feet around the capillaries, and gliosis, (c) microglial cell activation, (d) demyelinisation plates, particularly in the brain stem and/or the cerebral white matter, and (e) central nervous system glial and endothelial cell lesions, as well as the uses of said animal, are disclosed.
Patent CA-2221050-A1 (CA)
Inventor: MAY ANTON
IPC: F16N13/06
Filed: 1997-12-03
Abstract: An automatic lubricant dispenser has a lower housing part formed with an outlet, a piston displaceable along an axis in the lower part and forming therein a compartment, a spindle extending along the axis, threaded into the piston, having an upper end above the piston provided with a lower coupling half, and a body of fluent lubricant filling the compartment and forming with the spindle, piston, and lower housing part a lower subassembly.  An upper housing part securable to the lower part via a screw thread forms an upper subassembly.  An insert mainly in the upper housing part forms a battery compartment and carries a motor unit having an output shaft projecting downward therefrom at the axis and provided with an upper coupling half axially engageable with the lower coupling half.  The coupling halves are axially engageable to rotationally couple the motor output shaft to the spindle.  A battery is provided in the battery compartment and a circuit board fixed to the insert is connected between the battery and the motor unit.  An on-off switch mounted on the circuit board is actuatable to energize the motor unit from the battery.  The insert, motor unit, battery, circuit board, and switch together forming a core subassembly normally held between the upper and lower subassemblies.
Patent CA-2222039-A1 (CA)
Title: Stripping composition for paints, varnishes or lacquers
Inventor: LALLIER JEAN-PIERRE
IPC: C09D9/00
Filed: 1997-12-05
Abstract: Composition for stripping paints, lacquers, or primers consists of 5-90 pts.wt. water; 2-47.5 pts.wt. benzylic acid; and 2-47.5 pts.wt. dimethylsulphoxide or N-methylpyrrolidone. Also claimed is the method for stripping paint, varnish or lacquer by applying the composition to substrate in heated bath for sufficient time to remove the paint.